Phase III Study Comparing Datopotamab Deruxtecan With or Without Durvalumab Versus Chemotherapy Plus Pembrolizumab in PD-L1 Positive Locally Recurrent or Metastatic Triple-Negative Breast Cancer

What this Trial Is About

Researchers are evaluating the effectiveness and safety of Datopotamab Deruxtecan Dato-DXd with or without Durvalumab compared to investigators choice chemotherapy combined with Pembrolizumab in patients with PD-L1 positive locally recurrent inoperable or metastatic triple-negative breast cancer TNBC. This Phase III, randomized, open-label, international study aims to determine if Dato-DXd with Durvalumab can improve progression-free survival and overall survival while assessing quality of life impacts in this patient population. Participants are assigned to one of three groups Dato-DXd with Durvalumab, investigators choice chemotherapy paclitaxel, nab-paclitaxel, or gemcitabine plus carboplatin combined with Pembrolizumab, or Dato-DXd alone. All study drugs are given by intravenous infusion. The study includes stratification by geographic region, disease-free interval, and prior PD-1PD-L1 treatment. Treatment continues with monitoring up to about 33 months for progression-free survival and safety, with some outcomes followed up to 64 months. Throughout the study, participants undergo assessments including imaging to measure tumor response using RECIST criteria, laboratory tests, and questionnaires to evaluate symptoms and quality of life. Researchers monitor time to disease progression, overall survival, response duration, and safety outcomes. Follow-up includes evaluation of subsequent therapies and pharmacokinetics. The total participation duration can be up to several years to capture long-term outcomes.

A Phase III Study of Dato-DXd With or Without Durvalumab Compared With Investigator's Choice of Chemotherapy in Combination With Pembrolizumab in Patients With PD-L1 Positive Locally Recurrent Inoperable or Metastatic Triple-negative Breast Cancer (TROPION-Breast05)